package io;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

public class CopyDemo5 {
    public static void main(String[] args) throws IOException {
        FileInputStream fis = new FileInputStream("OIP3.jpg");
        FileOutputStream fos = new FileOutputStream("OIP.jpg");
        long start = System.currentTimeMillis();
        System.out.println("开始复制");
        int d;
        while((d=fis.read())!=-1){
            fos.write(d);
        }
        long end = System.currentTimeMillis();
        System.out.println("共耗时:"+(end- start)+"ms");
    }
}
